Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

Tutors Answer Your Questions about Linear-equations (FREE)

Question 333867: solve by graphing, and then check your ordered pair in both equations by 'plugging it in' to confirm that it is a solution to the system:
x+y= -1
2x-y=4
Click here to see answer by checkley77(12844)

Question 333818: The line with slope 3/2 that passes through the point (4, 2)

Click here to see answer by checkley77(12844)

Question 333991: what is the answer to 1/3x+3=3/4y?
Click here to see answer by stanbon(75887)

Question 334032: (0,2); 2x+9y=7 write the equation of the line containing the given points and perpendicular to the given line. y=mx+b format
Click here to see answer by mananth(16946)

Question 334158: x-y=3
-6x+6y=17
Click here to see answer by jrfrunner(365)

Question 334213: A student has earned scores of 87, 81, and 88 on the first 3 of 4 tests. If the student wants an average (arithmetic mean) of exactly 87, what score must she earn on the fourth test?
Click here to see answer by solver91311(24713)

Question 334305: Solve.
4y-15<3y-2
Click here to see answer by Alan3354(69443)

Question 334320: use the ordered pair shown on the graph (97.6,2.2)(2000,13.5) to find the slope of the line to the nearest hundreath
Click here to see answer by stanbon(75887)

Question 334320: use the ordered pair shown on the graph (97.6,2.2)(2000,13.5) to find the slope of the line to the nearest hundreath
Click here to see answer by Alan3354(69443)

Question 334335: slope of a line parallel to 3x-2y=2
Click here to see answer by stanbon(75887)

Question 334362: Find the value of b so that the graph of bx +5y =8 has a slope of 4.
Click here to see answer by solver91311(24713)

Question 334354: 5/4(4x+2)=22
Click here to see answer by rfer(16322)

Question 334356: -3x+2=5-x
Click here to see answer by rfer(16322)

Question 334499: solve the following system by graphing. answwer should be stated as an ordered pair (x,Y) Y=1/3X +2 Y=-X-2
Click here to see answer by solver91311(24713)

Question 334473: Given points A (k, 5) and B (6,8), find k so that the slope of line AB is 2/3. How do I solve this?
Click here to see answer by Edwin McCravy(20055)

Question 334518: True or Falso the two lines are parallel y=3x+7 y=-3x+7
Click here to see answer by vleith(2983)

Question 334518: True or Falso the two lines are parallel y=3x+7 y=-3x+7
Click here to see answer by solver91311(24713)

Question 334523: Every vertical rise of 1 foot requires a horizontal run of 12 feet. What is the grade (slope expressed as a percent) of the ramp?
Click here to see answer by jim_thompson5910(35256)

Question 334539: How do I graph this problem?
y= -x + 4
Click here to see answer by jim_thompson5910(35256)

Question 334544: what is a line passing through the points (3,4) and (7,0)?

Click here to see answer by jim_thompson5910(35256)

Question 334557: what is the line parallel to the line y=5x-12 and passing through the point (-2,-6)?
Click here to see answer by Fombitz(32388)

Question 334389: Solve using the substitution method 5x -2=y y-5x=1
Click here to see answer by Fombitz(32388)

Question 334679: How do you solve 4x - 5 = 4x + 10 ? I have tried to isolate the x variable, but keep coming up with 0 = 15! It doesn't make sense! Did the textbook have a misprint?
Click here to see answer by stanbon(75887)

Question 334713: how do a find the general form of the equation of the line that passes through the given point and has the indicated slope? Point (0,-2) Slope m=3
Click here to see answer by rfer(16322)

Question 334716: Solve using the substitution method

I could use some help on this on please.
thank you
Click here to see answer by stanbon(75887)

Question 334716: Solve using the substitution method

I could use some help on this on please.
thank you
Click here to see answer by checkley77(12844)

Question 334645: M=7/8, (7,-9)
(-1,8)(-3.5)
(3,-8);7x-3y=2
I am having trouble trying to solve this equation. I get extremely confused on the fraction part. If there is a simple way to use the TI84 calculator please let me know.
Click here to see answer by Alan3354(69443)

Question 334805: Following the guidelines of the Food and Drug Administration, Dale tries to eat 5 servings oif fruit each day. For the first six days of one week, she had 4,6,3,5,4, and 4 servings. How many servings of fruit should Dale eat on Saturday to average at least 5 servings per day for the week?
Click here to see answer by Fombitz(32388)

Question 334969: how do you find the slope for the problem...
slope of 1/2 and through the points (4, -1)
Click here to see answer by jim_thompson5910(35256)

Question 334986: Translate the problem into a pair of linear equations in two variables. Solve the equations using elmination or substitution. State yor answer for the specified variables.
don runs a charity fruit sale, selling boxes of oranges for $11 an boxes of grapefruit for $10. If he sold a total of 762 boxes and took in $8125 in all, then how many boxes of oranges did he sell?

could someone please help me out
Thank you so much.
Click here to see answer by stanbon(75887)

Question 334989: Solve for y. 2x+9y=10
Click here to see answer by checkley77(12844)

Question 334692: At Gwen's garage sale, all books were one price, and all magazines were another price. Harriet bought four books and three magazines for $1.45, and June bought two books and five magazines for $1.25. What was the price of a book and what was the price of a book and what was the price of a magazine?
Click here to see answer by nyc_function(2741)

Question 335046: A=P(1+rt) for r
Click here to see answer by nyc_function(2741)

Question 335100: absolute value equation : -8<2x-6<4
Click here to see answer by solver91311(24713)

Question 334987: Translate the problem into a pair of linear equations in two variables. Solve the equations using elmination or substitution. State yor answer for the specified variables.
In a basketball game,Will scored 26 points, consisting only of three-point shots and two-point shots. He made a total of 11 shots. How many shots of each type did he make?

could someone please help me out
Thank you so much.
Click here to see answer by nyc_function(2741)

Question 335143: In an substitution problem, when you have two variables on one side of the equal sign, what do I do?
Here is the problem:
3x - y = 5
-4x + 2y = -6
I know it is dependent, but I don't know how to get there! I did the other day... but now can't remember and have my final tomorrow.
Click here to see answer by Theo(13342)

Question 335167: find the value of "a" if a line containing the point (a,-3a)has a y-intercept of 7 and a slope of -2/3
Click here to see answer by benazir.sj@gmail.com(109)

Question 335172: write the equation of the perpendicular bisector of the segment joining A(-5,4) and B(3,-6)
Click here to see answer by benazir.sj@gmail.com(109)

Question 335202: Find an equation of the line having the given slope and containing the given point.
m=6/7 (8,-5)
Click here to see answer by Fombitz(32388)

Question 335201: Find the midpoint of the following segment created by these pairs of endpoints:
(10,10),(2,2) Thanks
Click here to see answer by Fombitz(32388)

Question 335171: Given the distance between (x,1) and (-2,5). Find the value(s) of x. please leave it in simplest form
Click here to see answer by Fombitz(32388)

Question 335174: write the equation of the line parallel to the line 4x-6y= -1 and contains the x-intercept of 3x-2y= 12
Click here to see answer by Fombitz(32388)

Question 333987: determine the x- and y- intercepts (if any) of the given equation. SHOW WORK. Then plot the intercepts and graph

I do not understand how to get the intercepts, I do know how to plot it on a graph though so I think I only need help with the first half of the question.
Thank you
Click here to see answer by Fombitz(32388)

Question 334024: discuss the effect of the sign of the coefficient a on the graph of y = ax2 + bx + c. Please include two examples of graphs to support your thoughts, one where a < 0 and one where a > 0
How do I explain this ?
Click here to see answer by Fombitz(32388)

Question 335229: what is an equation of the line containing the given pair of points: (2,5)and(6,7)?
Click here to see answer by solver91311(24713)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 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23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 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30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690, 30691..30735, 30736..30780, 30781..30825, 30826..30870, 30871..30915, 30916..30960, 30961..31005, 31006..31050, 31051..31095, 31096..31140, 31141..31185, 31186..31230, 31231..31275, 31276..31320, 31321..31365, 31366..31410, 31411..31455, 31456..31500, 31501..31545, 31546..31590, 31591..31635, 31636..31680, 31681..31725, 31726..31770, 31771..31815, 31816..31860, 31861..31905, 31906..31950, 31951..31995, 31996..32040, 32041..32085, 32086..32130, 32131..32175, 32176..32220, 32221..32265, 32266..32310, 32311..32355, 32356..32400, 32401..32445, 32446..32490, 32491..32535, 32536..32580, 32581..32625, 32626..32670, 32671..32715, 32716..32760, 32761..32805, 32806..32850, 32851..32895, 32896..32940, 32941..32985, 32986..33030, 33031..33075, 33076..33120, 33121..33165, 33166..33210, 33211..33255, 33256..33300, 33301..33345, 33346..33390, 33391..33435, 33436..33480, 33481..33525, 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